With Inventor we use the "Check-in" option from drawings or assemblies, and all of the subsequent child files are automatically checked into Vault. With AutoCAD Electrical the same concept can be accomplished through the Project Browser that is integrated with Vault. Just right click on any AutoCAD Electrical project file and you can Check-in or check-out the entire contents. Don't even worry about the individual files. Take a look at this video for a quick peek: